<template>
  <el-container class="home-container">
    <!-- 头部 -->
    <el-header>
      <div>
         <img src="../assets/tx.jpg" class="headimg">
         <span>电商后台管理系统</span>
      </div>
       <el-button type="info" @click="logOut">退出</el-button>
    </el-header>
    <!-- 页面主体 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollapse ? '64px':'200px'">
        <div class="toggle-button" @click="isCollapse=!isCollapse">|||</div>
        <el-menu
      background-color="#333744"
      text-color="#fff"
      active-text-color="#409eff"
      :unique-opened="true"
      :collapse="isCollapse"
      :collapse-transition="false"
      router
      :default-active="activePath">
      <!-- 一级菜单 -->
      <el-submenu :index="item.id+''" v-for="item in menulist" :key="item.id">
        <!-- 一级菜单模板区 -->
        <template slot="title">
          <!-- 图标 -->
          <i :class="iconObj[item.id]"></i>
          <!-- 文本 -->
          <span>{{item.authName}}</span>
        </template>
        <!-- 二级菜单 -->
        <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" 
        :key="subItem.id" @click="saveNavState('/'+subItem.path)">
          <template slot="title">
          <!-- 图标 -->
          <i class="el-icon-menu"></i>
          <!-- 文本 -->
          <span>{{subItem.authName}}</span>
        </template>
        </el-menu-item>
      </el-submenu>
     
    </el-menu>
      </el-aside>
      <!-- 右侧主体 -->
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data() {
    return {
      //左侧菜单数据
      menulist:[],
      iconObj:{
        '125':'el-icon-s-custom',
        '103':'el-icon-s-operation',
        '101':'el-icon-s-goods',
        '102':'el-icon-s-order',
        '145':'el-icon-s-data'
      },
      isCollapse:false,
      activePath:''
    }
  },
  created() {
    this.getMenuList()
    this.activePath=window.sessionStorage.getItem('activePath')
  },
  methods: {
    logOut() {
      window.sessionStorage.clear();
      this.$router.push("/login");
    },
    //获取所有菜单
    async getMenuList(){
      const {data:res}=await this.$http.get('menus')
      if(res.meta.status !==200) return this.$message.error(res.meta.msg)
      this.menulist=res.data
    },
    saveNavState(activePath){
      window.sessionStorage.setItem("activePath", activePath)
      this.activePath=activePath
    }
  },
};
</script>

<style lang="less" scoped>
.el-header{
  background-color: #373D41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  >div{
    display: flex;
    align-items: center;
    span{
      margin-left: 15px;
    }
  }
}
.el-aside{
  background-color: #333744;
  .el-menu{
    border-right: 0;
  }
}
.el-main{
  background-color: #eaedf1;
}
.home-container{
  height: 100%;
}
.headimg{
  width: 55px;
  height: 55px;
  border-radius: 50%;
}
.toggle-button{
  background-color: #4a5064;
  color: #fff;
  text-align: center;
  line-height: 24px;
  font-size: 10px;
  letter-spacing: 0.2em;
  cursor: pointer;
  user-select: none;
}
</style>